First appearing in the Clone Wars TV series on Disney XD on the episode called 'Blood Sisters,' Ketsu Onyo is a bounty hunter mainly employed by the criminal organization known as the Black Sun. She was trained as a cadet on the planet Mandalore until she and fellow Cadet Sabine Wren deserted the galactic Empire. Sabine became part of the Lothal Rebels while Ketsu became a bounty hunter. Mainly working prior to the battle of Yavin, Ketsu mainly worked with Sabine Wren before they parted on bad terms. Ketsu also collects bounties from other corporations, and has been thought to have worked with Boba Fett. Ketsu's homeworld Mandalore is also the homeworld of Sabine Wren among others.